<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2" style=""><FONT face="Arial, sans-serif">I've used aluminum with stainless and haven't noticed significant corrosion . The aluminum was anodized .</FONT></FONT><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT></DIV><DIV><FONT face="Arial, sans-serif" size="2"><BR></FONT><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">From: "Sean T. Stevenson via Personal_Submersibles" <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">To: personal_submersibles@psubs.org</SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Subject: Re: [PSUBS-MAILIST] Aluminum thru hulls</SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Date: Fri, 01 Jan 2021 01:51:51 +0000</SPAN><BR><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Dissimilar metal corrosion. Aluminum will form a galvanic cell with carbon steel. The only way to prevent this is to protect them with sacrificial metal anodes made of zinc or magnesium.</SPAN><BR><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">Sean</SPAN><BR><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">-------- Original Message --------</SPAN><BR><SPAN style="font-family: Arial, sans-serif; font-size: 10pt;">On Dec. 31, 2020, 17:40, Brian Cox via Personal_Submersibles < personal_submersibles@psubs.org> wrote:</SPAN><BLOCKQUOTE style="font-family: Arial, sans-serif; font-size: 10pt;"><BR><DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2">Hi All, Happy New Year ! Can anyone tell me why I can't make all of my different thru hulls out of aluminum ? Fittings that will be potted and so forth for electrical .</FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2">Thanks,</FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2">Brian</FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT></DIV></DIV>
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